Re: Proposing _NET_WM_STATE_FULLSCREEN_EXCLUSIVE

On 10/26/2012 10:12 AM, Bryce Harrington wrote:
> On Tue, Oct 23, 2012 at 04:26:20PM -0400, Ryan C. Gordon wrote:
>> _NET_WM_STATE_FULLSCREEN_EXCLUSIVE indicates that the Window Manager
>> MUST change the resolution of the window's screen to one that most
>> closely matches the window's current dimensions. If no available
>> resolution matches exactly, the Window Manager MUST select the
>> closest available resolution larger than the window. The Window
>> Manager MUST center the window within the new resolution, remove any
>> window decorations, retain its original geometry, and grant that
>> window input focus. If the chosen resolution does not match the
>> window geometry, the Window Manager MUST obscure the rest of the
>> screen so that the window is the only thing visible. If there is no
>> resolution that can completely contain the window's undecorated
>> geometry, the Window Manager MUST refuse to allow this hint.
> Should the window manager also constrain the pointer to the area inside
> the window, or is that the client window's responsibility?
>   
> Regarding centering, in the case of a multiple monitor layout, say two
> 1920x1200 monitors providing 3840 x 1200 total screen size, if a game
> can run at 1920x1200 (but nothing larger), then shouldn't it occupy
> either the left or right monitor rather than be centered half on each?
> (Presumably it should be whichever screen the game was launched from?)
> Should this case be handled by turning off unneeded displays to reduce
> the desktop to 1920x1200, or by leaving the displays on but obscuring
> them?

2¢ from casual gamer:

* filling a single monitor window is the expected behavior.
* user should be able to choose which monitor the game runs on (on 
Windows, one monitor is designated as primary desktop, and a game is 
usually expected to fill that monitor; being able to fill a different 
monitor was not a hard requirement)
* turning off other displays is usually NOT desired: if the game is not 
using them, I would expect to be able to use a 2nd/3rd/etc. monitor to 
display something else (reference information for the game, or maybe 
email client/notification widget/etc.). If the user doesn't need to use 
the extra monitors, she can turn them off manually.

HTH

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